In OpenStreetMap this club has more holes than a single round, or hands out numbers more than once. Which hole belongs to which course is not in the data: the holes carry no golf:course:name. Where that tag is present we separate the courses and show them one by one. Here all holes stand together, and whoever writes the book makes the choice. Tagging the holes in OpenStreetMap settles it for everyone.
Main Course is a golf course in the United States. 19 holes are surveyed here from OpenStreetMap, 7,480 yd6,838 m of playing length in total, at par 75. The longest hole is number 4 at 639 yd584 m, the shortest number 19 at 141 yd129 m. Worked out in advance: the distance to the front and the back edge of the green for 18 holes as well as the carry distance over 55 bunkers and 18 water hazards for 18 holes. For 19 holes the elevation change between tee and green is on record as well.
Every hazard carries two numbers: the first reaches its near edge, the second carries past it. Drawn from OpenStreetMap, exactly as the app draws it.
Yardage book for Main Course. In OpenYardage every hole is a drawing, with distance rings, your own notes hole by hole and your club choice. Books by other players can be read, copied and printed as an A6 booklet.
OPEN THE COURSE IN THE APPReading needs no account. Writing your own book does.
Never played with a yardage book? What goes in one and how to read it
| TAG | MISSING ON | WHAT FOR |
|---|---|---|
| handicap | 8 of 19 holes | Stroke index, net scoring |
In OpenStreetMap this belongs on the individual hole, not on the course; anyone who plays here can add it there for everyone: edit in FairwayMapper · look at the course in OpenStreetMap · open the editor right away.
All figures in yards, converted from the metre values in OpenStreetMap.All figures in metres. The length follows the line of play from the back tee to the middle of the green and takes a dogleg with it. Carry distances count from the tee to the near edge and to the far edge of the hazard. The stroke index ranks the holes by difficulty from 1 to 18 and decides where net strokes fall.
TABLE SCROLLS SIDEWAYS
| HOLE | PAR | STROKE INDEX | LENGTH | GREEN FRONT · MIDDLE · BACK | GREEN DEPTH | GREEN WIDTH | ELEVATION | WALK TO NEXT HOLE |
|---|---|---|---|---|---|---|---|---|
| 1 OSM | 4 | 17 | 384 yd351 m | 366 · 383 · 400 yd335 · 350 · 366 m | 35 yd32 m | 27 yd25 m | -2 yd-2 m | 91 yd83 m |
| 2 OSM | 3 | 13 | 162 yd148 m | 142 · 162 · 179 yd130 · 148 · 164 m | 37 yd34 m | 26 yd24 m | -3 yd-3 m | 56 yd51 m |
| 3 OSM | 4 | 9 | 389 yd356 m | 369 · 388 · 408 yd337 · 355 · 373 m | 40 yd37 m | 23 yd21 m | +1 yd+1 m | 148 yd135 m |
| 4 OSM | 5 | 3 | 639 yd584 m | 620 · 636 · 655 yd567 · 582 · 599 m | 35 yd32 m | 30 yd27 m | -5 yd-4 m | 61 yd56 m |
| 5 OSM | 3 | 11 | 205 yd187 m | 189 · 205 · 219 yd173 · 187 · 200 m | 30 yd27 m | 27 yd25 m | -4 yd-4 m | 136 yd124 m |
| 6 OSM | 5 | 1 | 550 yd503 m | 527 · 550 · 570 yd482 · 503 · 521 m | 43 yd39 m | 25 yd23 m | +1 yd0 m | 120 yd110 m |
| 7 OSM | 4 | 15 | 352 yd322 m | 337 · 352 · 369 yd308 · 322 · 337 m | 32 yd29 m | 25 yd23 m | -1 yd-1 m | 74 yd68 m |
| 8 OSM | 4 | 7 | 455 yd416 m | 439 · 455 · 472 yd401 · 416 · 432 m | 34 yd31 m | 33 yd30 m | -1 yd-1 m | 165 yd151 m |
| 9 OSM | 4 | 5 | 431 yd394 m | 409 · 430 · 449 yd374 · 393 · 411 m | 40 yd37 m | 28 yd26 m | -3 yd-3 m | 130 yd119 m |
| 10 OSM | 3 | 12 | 187 yd171 m | 175 · 187 · 197 yd160 · 171 · 180 m | 22 yd20 m | 36 yd33 m | -2 yd-2 m | 148 yd135 m |
| 11 OSM | 4 | 10 | 452 yd413 m | 430 · 448 · 467 yd393 · 410 · 427 m | 37 yd34 m | 26 yd24 m | +3 yd+3 m | 116 yd106 m |
| 12 OSM | 5 | · | 559 yd511 m | 540 · 560 · 581 yd494 · 512 · 531 m | 40 yd37 m | 35 yd32 m | 0 yd0 m | 94 yd86 m |
| 13 OSM | 4 | · | 418 yd382 m | 401 · 418 · 437 yd367 · 382 · 400 m | 36 yd33 m | 24 yd22 m | +2 yd+2 m | 57 yd52 m |
| 14 OSM | 4 | · | 464 yd424 m | 442 · 462 · 484 yd404 · 422 · 443 m | 43 yd39 m | 30 yd27 m | -3 yd-3 m | 54 yd49 m |
| 15 OSM | 3 | · | 221 yd202 m | 207 · 222 · 236 yd189 · 203 · 216 m | 30 yd27 m | 37 yd34 m | -2 yd-2 m | 67 yd61 m |
| 16 OSM | 4 | · | 448 yd410 m | 423 · 451 · 475 yd387 · 412 · 434 m | 51 yd47 m | 24 yd22 m | -2 yd-2 m | 86 yd79 m |
| 17 OSM | 4 | · | 439 yd401 m | 420 · 439 · 458 yd384 · 401 · 419 m | 38 yd35 m | 42 yd38 m | -3 yd-2 m | 73 yd67 m |
| 18 OSM | 5 | · | 584 yd534 m | 563 · 583 · 603 yd515 · 533 · 551 m | 39 yd36 m | 30 yd27 m | -11 yd-10 m | · |
| 19 OSM 1 | 3 | · | 141 yd129 m | · | · | · | 0 yd0 m | · |
| HOLES 1 TO 9 | 36 | 3,567 yd3,261 m | ||||||
| HOLES 10 TO 18 | 36 | 3,772 yd3,448 m | ||||||
| 19 HOLES | 75 | 7,480 yd6,838 m |
For 19 of the 19 holes the elevation profile is calculated. Hole 17 has the most cumulative elevation change along the played line: 19 yd (8 yd up, 11 yd down; -3 yd net tee to green).Hole 17 has the most cumulative elevation change along the played line: 16 m (7 m up, 9 m down; -2 m net tee to green). The basis are official elevation models (US-3DEP10).
Two numbers to every hazard: the first reaches its near edge, the second carries past it. Land between the two and you are in it.
Bunker Red penalty area Water · yards from the teemetres from the tee · L left · R right
The basis is the map of this course in OpenStreetMap. Lengths, distances to the green edge and carry distances are calculated from it, not copied: every hole is projected onto its line of play and the arc length from the tee is counted. This replaces neither an official course measurement nor the club's scorecard. If you spot a mistake you can report it through the course page in the app, map it in FairwayMapper or correct it in OpenStreetMap straight away. Data as of 2026-09-18.
Do you know this course better than the map?
Ask a question, report a course that is missing, or say what should come next.
Do you work for Main Course?
The club material is still waiting on OpenStreetMap: 19 holes are drawn, not a full round of 9, 18, 27 or 36. You know your course better than any stranger: in OpenStreetMap that is an hour of work.
edit in FairwayMapper · look at the course in OpenStreetMap · open the editor right away
As soon as it is there, the club material appears here: QR code, badge and the booklet to leave out.